Opp : Check interrupted state before create socket

Use case:
1. Pair remote with DUT.
2. Select any image and try share.
3. select bluetooth to be sent
4. Turn off bt quickly after clicking selected remote device.

Failure:
Bt can not be turned off and then bt turns on again.

Root Cause:
Some rare cases even after turn off BT connection thread is
initiating socket coonection.

Fix:
Check with interrupted flag connection thread before creating
Bluetooth socket.

CRs-Fixed: 1084325
Change-Id: I40667a6e8c5a2cb047a1fd081d676e654e3ee858